Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vX5qG6A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8b5504d9-1a3a-44cf-838c-f0f5d1606a7b",
      "cw-124d0653-ad16-4cc5-b9ec-2175198fa290"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-18ad68ee-1cf1-4376-9c59-a0660edde478",
    "manifestId": "https://dam.iuav.it/iuav/containers/vX5qG6A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-124d0653-ad16-4cc5-b9ec-2175198fa290"
  }
}